[Shostak]

Sounds like fun! My suggestions:
1. Give each player a page of options or option cards.
2. A single initiative roll for players and a single roll for the GM's baddies, then go by DX within those groups for movement.
3. Give everyone a name tag to wear with their figures name, DX, and counter letter on it written large so you can see it easily.
4. Have cards you can give players, or chits you can place on the counters that say things like "-2DX 1 round" to help keep track of damage-based DX adjustments.
5. Have a card for yourself with turn sequence, including things like "remove/discard expiring AdjDX cards.
6. Unless you the GM are very good at keeping track of such things, ignore rule regarding acting by AdjDX when it comes to things like facing, missile range, etc. It is great to include those when players are more seasoned, but with a large group of beginnners, you'll be doing yourself a favor by ignoring.